Georeferencing data with GCP

[Carlos Grohmann]

Does Colmap support Ground Control Points (GCP) information to increase the precision of point clouds/meshes?

[Johannes Schönberger]

Hi,

COLMAP provides geo-registration by providing positions of cameras but not for points, see https://colmap.github.io/faq.html#geo-registration

Adding ground control point constraints should be relatively easy. Let me know if you need assistance with implementing this.

Best,
Johannes

> On Oct 20, 2017, at 1:40 AM, Carlos Grohmann <carlos....@gmail.com> wrote:
>
> Does Colmap support Ground Control Points (GCP) information to increase the precision of point clouds/meshes?
>

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[tharun...@gmail.com]

Hi.

Can you please help me create ground control point constraints?

[Johannes Schönberger]

Hi,

 

I am sorry, but I don’t have time to implement this. I would be happy to provide feedback and to review a pull request on Github, if you were to try and implement this yourself.

 

Cheers,

Johannes

To view this discussion on the web visit https://groups.google.com/d/msgid/colmap/4dd455a4-3556-43ca-80a2-153b4809e54e%40googlegroups.com.

[tharun...@gmail.com]

thank you for the reply. I too cannot implement now as I am busy. Will surely ask for your feedback when I visit this issue again.